the national rifle association says the best way to prevent school shootings like the one in newtown, connecticut, is to put an armed police officer in every school. tara mergener's in washington with more. tara, good morning. >> good morning, duarte. the nra says guns and police will help stop the next killer already waiting in the wings. it's a controversial idea in the middle of an already emotional and heated debate now raging across the country. hundreds of protesters march aid cross the brooklyn bridge asking for new gun control laws and there was a demonstration outside a gun shop. >> to allow these guns for no other purpose than to murder and slaughter innocent people and children is insane. >> reporter: fear of gun control laws has made the sale of guns this christmas. >> two weeks ago you could have bought one gun for, you know, $1,400. now it's $2,500, $2,700. >> debate over gun control is just as heated here on capitol hill. the nra, one of the most effective lobbying organizations in washington says it will fight any new restrictions. >> what every mom and dad will make them feel bet